Internal-combustion engine.



W. KELLY INTERNAL COMBUSTION ENGINE.

- APPLICATION FILED MAYII, m2.

Patented Nov. 14, 1916.

3 $HkEI$-SHEET I.

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I/ III Q IQ SAN VA Q S INVE TOR- ATTORNEY W. KELLY.

INTERNAL COMBUSTION ENGINE.

I APPLICATION FILED MAY H, 1912. 1,205,095.

Patented Nov. 14, 1916.

3 SHEETS-SHEET 2- IN VENTOR WITNESSES: 1 Q 6 if 1 *7 W 25 M- A TTORN W. KELLY.

INTERNAL COMBUSTION ENGINE.

APPLICATION FILED MAY 11, l9l2.

' Patent-ea Nov. 14,1916.

3 SHEETSSHEET 3.

' //\1 VENTOR WITNESSES."

ATTORNEY WILLIAM KELLY, 0F DETROIT, MICHLGAN, ASSIGNOR TO MAXWELL MOTOR COMPANY,

INCORPORATED, OF DETROIT, MICHIGAN.

Specification of Letters Patent.

INTERNAL-COMBUSTION ENGINE.

Application filed May 11, 1912, Serial No. 696,567.

citizen of the United States, residin at Detroit, county of Wayne, State of ichigan, have invented a certain new and useful Improvement in Internal-Combustion Engines, and declare the following to be a full, clear, and exact description of the same, such as will enable others skilled in the artto which it pertains to make and use the same, reference being had to the accompanying drawlngs, which form a part of this specification.

My invention relates to internal combusti on engines and has for its object to prov de an improved internal combustion engine and one in which the passages of the gases through the same is accurately controlled. I attain this object in the device illustrated in the accompanying drawings, inwhich, T

Figure 1, is a plan view of. a six-cylinder engine embodying my invention. Fig. .2, is a section on the line 2-2 Fig. 1. Fig. 3, is an end elevation looking at the right of Fig. 1, the pipe 6 for conducting away the exhaust gases being removed. Fig. 4, is a side elevation of the same. .Fig. 5,-is

- an inverted plan view of the part shown in Fig. 4, the carbureter and pipe for conducting the intake gases being removed- Fig. 6, is an inverted sectional view, thesec- *tion being taken on the line 66 Fig. 4.

. discharged from another,.it was found that Fig. 7, is an inverted sectional view with Elie section .being taken on the line 7-7 n a multiple cylinder internal combustion engine it has been found that the different cylinders would act differently and therefore an even impulse was frequently not obtained. -In six-cylinder engines, or

those in which one cylinder would'exhaust before the exhaust gases were completely the last to exhaust would force the gases back into the one that had not completed its exhaust stroke, and in the intake. .11". was

found that different cylinders produced a different draft on the intake pipe, and therefore were supplied with, explosive mixture in differentquantities. An ob'ect ofmy invention is to remedy these de ects by utilizing the inertia. of the gases themselvesin the passa es,

A and A designate the cylinders of a sixcylinder motor.

Patented Nov. 14, 1916.]

ing into the passage 13 and the three cylinders A have their exhaust passages a a (1 opening into the passage B The passages B and B are separated from each other by an intervening wall B and extend parallel to each other along the length of the engine and are cast integral with each other and with the cylinders. At one end of the cylinder casting both of the passages B and B open into a single conduit pipe I) (Fig. 1}. The, action ofthe engine is such that the cy inders exhaust alternately in the passages B and B In this way there is a considerable distance interposed between the exhaust ports which are opened atthe same time and the inertia of the gases is suflicient to prevent the backing up or the interference of one exhaust with the other.

C, is an intake manifold," or chamber, from which the intake passages c 0 c c c a lead to the respective cylinders. The chamber, or manifold, C is below theexhaust passage or manifold B and is' cast integral therewith, there being a common intervening wall. At each end of the manifold C there is an opening d for the from the carbureter E.

e, is a pipe leading from the carbureter E and extending in two equal branches D D and communicating with a manifold C by ports or openingeld d at each end of said manifold. By t 's construction the chamber or manifold G contains suflicient gases pipe D leading each end from the pipe D leading from the carbureter and pipe e, thus each of the cyl' inders takes in the same uantity of explosive mixture. 'The branching pipe D D and pipe e leading to the carburetor form a secand chamber of .considerableincluded space so that the draft of the engine upon the car- 'bureter is cushioned and equalized by the chamber C in the first place and in the sec- 0nd place by the chamber formed by the pi es D D and e. r

. at I claim is 1. In a multiple cylinder internal com bustion engine in which the exhaust takes place in one cylinder while the exhaust port to another cylinder is still open, an ea=- gm haust manifold to all ofsaid cylinders loomprising a passage communicating with the exhaust ports of. a part of said cylinders,

and a passage communicating with the exof said passages from that into which the other exhausts, said passages being arranged with their discharge ends opening in the same direction adjacent to each other and in the same inclosure, the construction and arrangement being such that the gas issuing from one 01: said passages shall be carried by its 'v'is m'oa away from the opening to the other of said passages.

bustion engine in which the exhaust takes place in one cylinder while the exhaust port toanother cylinder is still open, an exhaust manifold to all of said cylinders comprising a passage communicating with the in to the other passage. 2. In a multiple cylinder internal comexhaust ports of apart of said cylinders,

and a passage communicating with the exhaust ports of the ,rest of said cylinders, said cylinders being arranged to exhaust into said passages so that of the c linders whose exhaust ports are open at-t e same time one shall exhaust into a different one ried by its was vim away from the openingto the other of said passages, and shall produce a lowering of pressure at the said openn testimony whereof, cationin the presence of two witnesses, e WILLIAM KELLY. Witnesses:

STUART O. BARNES Vmemm C. SPRA'I'I.

I sign this specifi- 

